Device



Nov. 1- 1927.

L. O. STEINKE HEATING DEVICE Filed April l5, 1927 l lll/"ll lll Il l l Il] l fllllllllllllllllllllllllll lNvENTR BY @l ma l Nov. l,

HEATING DllVltCE.

Application filed April 13, 1927. No. 133,493.

This invention relates to an improved heatingI device which may be embodied either in a heating` stove or which may form the interior portion ot a hot air furnace.

lt is one oi the objects oit this invention to spread the flame tovvard the outer radiating shell in such an e'tiiective manner as to obtain a very eticient radiation of heat therefrom.

l't is a further object to retain the products of combustion closely adjacent the shell during; the upvvard flow of the former for a portion ot the height of the shell.

A feature oit my invention consists in a spreader that is disposed over the grate and that constructed oi: material of high heat conductivity so that While the heater is in operation, the spreader will 2ejlow to a state ot incandescence Athereby serving not only to destroy and burn up soot, but also serving to expand the products of combustion by superheating the same and not only increasiup; the eiiiciency of the heater but also acceleratingv the draft therefrom. j

A further objectis to provide an insulator oi a very low degree of heat radiation and conductivity Within the spreader With a view of preventing the heat from flowing inwardly away from the radiating shell and also serving to torce the products of com* bustion to take a circuitous path in very etliective relation to the incandescent Walls of the spreader.

The invention has many other featuresand objects that will be more fully `described in connection with the accompanying drawing and which will be more particularly pointed out in and by the appended claims.

ln the drawing:

liig. 1, is a vertical sectional view ot one 'term of the device of my invention.

llig. 2, is a sectional view on line 2-2 of liig". 1.

Like characters of reference designate similar parts throughout the different iigures of the drawing.

.eis shown, the heatingdevice includes an outer radiating shell l, which may, in a heatin@` stove, form the outside Wall, and which may, in a hot air furnace, be a radiating Wall inside the outer casing for heating the upwardly flowing air. The shell has a bottom wall 2, a top Wall 3 and a flue 4, which latter is the usual stove pipe. Any form of lgrate 5, mounted as at 6, divides the shell into a lower ash pit 7 and an upper combustion chamber 8. Doors 9 and 10, for removal ot the ashes and insertion of the fuel, respectively, may be of any desired torno.

l will nent reiter to what more specifically constitutes my invention, in the combination set forth.

l have shown a :dame spreader and soot burner which has a bottom vvall 11, that may properly be termed a crown-sheet and against which the iames may play and be spread outwardly, and, in the present construction, radially outwardly toward the shell 1, so that the latter will more effectively radiate heat. Suitable supports, such as brackets 12, may serve to support said Wall il. at the proper elevation in the heating device. l preferably make this Wall oi' a very thin material, or in any event, of a material ot high heat conductivity, so that when the heating device is in service, the vvall 11 will be heated to a state ci' incandescence. in the term shown, l have embodied the spreader in the 'form of a cup with an annu lar Wall 13 that is also of a thin material or one ot high heat conductivity. rlhe diameter ot Wall 13is such that it is disposed very closely to the inside ot shell 1 so as'to retain the upwardly {ioiving products of combustion in close relation thereto. By making the spreader oi a material ot high heat conductivity, the heat from Wall 11 will be transmitted to Wall 13 and maintain the latter as nearly as possible at ashigh a tempcrature as ivall 1l.

.as a further means oi preventing heat from remaining in the interior of the heater, l. provide what l will term an insulator, the same being shown in the iorm of an annular drum having an outside vvall 14, top and bottom Walls 15 and 16, respectively, and an inner and preferably central Wall 17. The latter Wall forms a bore through the drum through which an extension 18 of the stove pipe projects. The interior of the drum, as indicated at 19, is dead air space, which forms an eiiicient insulator against heat absorptionbeyond a limited extent. It will be noted that the extension 18 is considerably enlarged in diameter with respect to the diameter voi pipe d, the importance of which will later appear. A connection of normal diameter, as indicated at 20, unites tine e.. with extension 18. A closure 21, hinged at 2Q, and suitably operated from the exterior ot the device, may, when open, permit direct tlovv of the products of combustion to the :liuc 4:, and when closed, forces the products of combustion to. take a circuitoiis path which will presently be described.

l will next describe the operation of iny improved heating` device.

In starting a fire, the closure 21, is opened to alford a direct path to the line 4e` After the lire has been started, the closure 2l is adjusted to the full line position as shown. Then?, the products of combustion sweep along the lower face of bottoni wall 11 and are spread radially outwardly toward the shell l. with which they conie into effective Contact. Wall 1,3, forces the products of combustion to flow closely adjacent shell 1 and then, by reason of the insulator drinn, the path is indicated by the arrows as beingrdownivardly inside of wall 13, to the bottoni of the drinn, and thence along the top. face of Wall ll, radially inwardly toward the .inlet This inlet 23, communi- Cates with extension 181 and freni the latter7 the flow is outwardly through the flue 4.

New by rea-son of the fact that the wall ll, acts as a crown sheet, 'and because of the material ot' which it is constructed. it will soon glow with a degree of incandesu cence after the lire is started. Because of the fact that the products of combustion are forced to come intol contact with the wall l1, before entering: 23. it will be seen that the same are superheated. and expanded so that the draft will be very appreciably accclerated. In fact, this acceleration of draft will be sufficient to more than overcoine any retardation caused by the circuitoiis course of iiow. Further, this acceleration of draft will, in great ineasure. sweep the line ash accumulations .troni the top of wall 1l, into entrance 23, and out the flue d. The soot. that is carried upwardly by the products of coniibustion and Vforced to make the circuitoiis path. will not only he broken up, but will he effectively burned and destroyed while passing along the lower and top4 face of wall 1l.

Should there be any necessity of cleaning outy wall 1l, I niay provide a cleanout door 2a, in shell l,` and a small opening 25, in wall 18, to. remove any accumulations. However, the device will; to a inaxiniinn extent., avoid any s uch accumulations.

It is believed that the device of lny invention will be fully understood froin the foregoing' description. and while l have herein Shown one specific form of my invention. I do, not; wish to be limited thereto except for such limitations :is the claims may import.

I clain'i:

1. In a rooin heatingl device. :i hcat radiating shell having a .lire I.erate and :i flue. 1 Clip-like liaine spreader of such hiiijh hcat conductivity as to become incandescent :ind beingv disposed above said girate and havinp; a bottoni wall for spreadingl the tlanics toward said shell. said spreader harina' :iii upright wall for retaining1 thc 'llzinics in close adjacency to said shell. and a hollow dead air insulator drinn disposed in siid spreader and having); a hoic opcnincj thrrninli its bottoni for connection with siiil lhic and forcing the products of conihiii-ftion to cloacly travcrsi-i the inside 'l'acc of said iiprin'ht wall and the top face of said bottoni wall before entering); the liuc.

2. ln a rooni heating device. a cylindrical heat radiating); .shell harii'ifi :i lirc finite and :i flue a cylindrical cup-shape! tlziinc prciidcr of such higifli heat conductivity :isy to hccoinc incandescent and heine; disposed ahovc said grate and havingl a hottoin wall for spread innr the flames radirll).Y outwardly toii'ai'il said shell. said lsprcadcr having' :in :iniiiilzii upright wall for rctiiininfz thc thinics` in close relation to said shell.. and a hollow dead air drinn disposed within said spread er and` l'niving a bore connected with thc flue and opening through the bottoni ot sah! drum to said spreader whereby the prc'idiicts of combustion will be forced to travcrac the inside face of said infn-ight wall and the top face of said bottoni wall before entering; said flue.

3. ln a rooin heating device. a heat ra-u diating shell having` a grate :ind a tine. a cup-shaped 'tlaine sprcadcr over the 1era* i for spreading` the iian'ies against said shell. and a drinn in said spreader forcing the products of combustion to tlow downwardly in said spreader and across thc bottoni wall thereof to heat and expand .said products of combustion, and said drinn having a here connected with said flue and openinii to a lower part of said spreader and licinplr ol' increased `size with respect to said tliic. whereby an incrcascd capacityv will hc, :it forded for the accelerated draft initiiitcd by heating the products ol conibiistioii in said spreader.

In testimony that I claim the foregoing; as my own` l' hereby aiiizc niv signature.

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